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arXiv · hep-ph/0312276

The $a_0K^+K^-$-vertex in light cone QCD sum rules

A. Gokalp·O. Yilmaz
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Abstract

We investigate the $a_0K^+K^-$-vertex in the framework of light cone QCD sum rules. We estimate the coupling constant g$_{a_0K^+K^-}$ which is an essential ingredient in the analysis of physical processes involving $a_0(980)$ meson. Our result is somewhat larger than the previous determinations of this coupling constant.

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A. Gokalp, O. Yilmaz. 2003-12-19. The $a_0K^+K^-$-vertex in light cone QCD sum rules. https://doi.org/10.1103/physrevd.69.074023

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